Disable all the browser_tests that are flaking more than 5% of the time on trybots.

chrome/browser/chromeos/system/tray_accessibility_browsertest.cc

Index: chrome/browser/chromeos/system/tray_accessibility_browsertest.cc
diff --git a/chrome/browser/chromeos/system/tray_accessibility_browsertest.cc b/chrome/browser/chromeos/system/tray_accessibility_browsertest.cc
index 7da7af02c5e718aae79fab43d927bb3dadf9151a..e1e67abd2c74460a55e43d8d56a6f70541b8be46 100644
--- a/chrome/browser/chromeos/system/tray_accessibility_browsertest.cc
+++ b/chrome/browser/chromeos/system/tray_accessibility_browsertest.cc
@@ -269,6 +269,8 @@ IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, LoginStatus) {
   EXPECT_EQ(ash::user::LOGGED_IN_USER, GetLoginStatus());
 }
 
+// http://crbug.com/396342
+#if 0
 IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowTrayIcon) {

[viettrungluu, 2014/07/23 15:35:02]

You should be able to disable these with DISABLED_, no?

[jam, 2014/07/23 16:28:26]

Done.

   SetLoginStatus(ash::user::LOGGED_IN_NONE);
 
@@ -337,7 +339,10 @@ IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowTrayIcon) {
   AccessibilityManager::Get()->EnableHighContrast(false);
   EXPECT_FALSE(IsTrayIconVisible());
 }
+#endif
 
+// http://crbug.com/396342
+#if 0
 IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowMenu) {
   // Login
   UserManager::Get()->UserLoggedIn(
@@ -405,7 +410,10 @@ IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowMenu) {
   SetMagnifierEnabled(false);
   EXPECT_FALSE(CanCreateMenuItem());
 }
+#endif
 
+// http://crbug.com/396318
+#if 0
 IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowMenuWithShowMenuOption) {
   // Login
   UserManager::Get()->UserLoggedIn(
@@ -478,6 +486,7 @@ IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowMenuWithShowMenuOption) {
   // Confirms that the menu is invisible.
   EXPECT_FALSE(CanCreateMenuItem());
 }
+#endif
 
 IN_PROC_BROWSER_TEST_P(TrayAccessibilityTest, ShowMenuWithShowOnLoginScreen) {
   SetLoginStatus(ash::user::LOGGED_IN_NONE);